2015年陕西省中考数学试题及答案
2015年陕西省中考数学试卷 一、选择题(共10小题,每小题3分,计30分,每小题只有一个选项是符合题意的)1.(3分)(2015•陕西)计算:(﹣)0=( ) A.1B.﹣C.0D.2.(3分)(2015•陕西)如图是一个螺母的示意图,它的俯视图是( ) A.B.C.D.3.(3分)(2015•陕西)下列计算正确的是( ) A.a2•a3=a6B.(﹣2ab)2=4a2b2 C.(a2)3=a5D.3a2b2÷a2b2=3ab4.(3分)(2015•陕西)如图,ABCD∥,直线EF分别交直线AB,CD于点E,F.若∠1=46°30′,则∠2的度数为( ) A.43°30′B.53°3...
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